1172645560 has 32 divisors (see below), whose sum is σ = 2655272160. Its totient is φ = 466068096.

The previous prime is 1172645549. The next prime is 1172645563. The reversal of 1172645560 is 655462711.

It is a happy number.

1172645560 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1172645563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87084 + ... + 99643.

It is an arithmetic number, because the mean of its divisors is an integer number (82977255).

Almost surely, 2^1172645560 is an apocalyptic number.

1172645560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1172645560 is an abundant number, since it is smaller than the sum of its proper divisors (1482626600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1172645560 is a wasteful number, since it uses less digits than its factorization.

1172645560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186895 (or 186891 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 1172645560 is about 34243.9127437272. The cubic root of 1172645560 is about 1054.5218620546.

The spelling of 1172645560 in words is "one billion, one hundred seventy-two million, six hundred forty-five thousand, five hundred sixty".